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Renesas HZU27B01TRF-E
- Part No.:
- HZU27B01TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU27B01TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:54,505
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Product details
Overview
HZU27B01TRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for hard-knee, low-noise voltage reference applications. It delivers a nominal Zener voltage of 2.7 V at 0.5 mA, exhibits ultra-low noise voltage (~1/3 to 1/10 that of standard HZU series), and features a temperature coefficient of −1.2 mV/°C. Its URP (Ultra small Resin Package) supports high-density SMT layouts in precision analog circuits.
For engineers reviewing the HZU27B01TRF-E datasheet, HZU27B01TRF-E pinout, HZU27B01TRF-E application, or HZU27B01TRF-E equivalent, key selection criteria include its hard-knee Vz–Iz linearity (1 nA to 1 mA), low dynamic impedance (350 Ω at IZT = 0.5 mA), tight Zener voltage tolerance (±0.2 V), and suitability for low-power, low-drift reference designs in instrumentation and sensor signal conditioning.
Technical Context
The HZU27B01TRF-E operates as a two-terminal shunt voltage reference with semi-logarithmic linear Vz–Iz characteristics across six decades of reverse current (1 nA to 1 mA). Its hard-knee behavior ensures stable regulation onset without soft turn-on ambiguity, critical for precision biasing and threshold detection.
Designed for low-noise operation, it achieves ~1/3–1/10 the noise voltage of legacy HZU-series diodes and halves the temperature coefficient (−1.2 mV/°C vs. −2.4 mV/°C typical for HZU2BLL). These improvements stem from epitaxial planar process optimization and controlled junction geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V ±0.2 V at IZ = 0.5 mA - defines precise reference point for low-voltage analog circuits |
| Dynamic Resistance (ZZT) | 350 Ω typ. at IZT = 0.5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤100 nA at VR = 1.0 V - enables ultra-low standby power in battery-sensitive designs |
| Temperature Coefficient (γZ) | −1.2 mV/°C - reduces thermal drift by ~50% versus standard HZU2BLL variants |
| Noise Voltage | ~1/3 to 1/10 of HZU series - directly lowers RMS noise floor in reference paths |
| Power Dissipation (Pd) | 150 mW max at Ta = 25°C - supports compact PCB layout with minimal thermal derating |
Pinout & Package
Package: Ultra small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, mass 0.004 g. Dimensions: 1.10 × 0.80 × 0.45 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to lower-potential node (typically ground); completes bias path for reference current |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | VZ–IZ curve shows sharp, predictable turn-on from 1 nA to 1 mA - eliminates ambiguity in low-current regulation |
| Low-noise voltage performance | Reduces RMS noise in reference paths by up to 90% vs. legacy HZU series - improves ADC effective resolution |
| Reduced temperature coefficient | −1.2 mV/°C enables <±2 mV total drift over −25°C to +85°C - suitable for unheated industrial sensors |
| Ultra-small URP package | 0.8 mm width × 1.1 mm length footprint - allows placement near IC pins to minimize trace inductance and noise pickup |
Applications
| Precision Voltage Reference | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.7 V reference for 16-bit SAR ADCs in portable data loggers. IC Role / Device Role / Timing Role: Shunt reference source establishing exact input scaling and offset calibration point. Use Value: Hard-knee linearity and low noise ensure <±0.5 LSB integral nonlinearity error across operating temperature range. | Use Scenario: Biasing bridge-type pressure sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-current Zener providing excitation voltage with minimal quiescent drain. Use Value: 100 nA max reverse leakage at 1.0 V enables >10-year battery life in sleep-mode operation. |
| Threshold Detection Circuit | Low-Drift Analog Front-End |
Use Scenario: Overvoltage lockout in USB-C power delivery interface protection. IC Role / Device Role / Timing Role: Precision clamp defining 2.7 V trip point for comparator input. Use Value: Tight ±0.2 V VZ tolerance and −1.2 mV/°C TC enable accurate, temperature-stable fault triggering. | Use Scenario: Setting bias points in medical-grade ECG amplifier stages. IC Role / Device Role / Timing Role: Low-noise reference for op-amp common-mode voltage and gain-setting networks. Use Value: 1/3–1/10 noise reduction versus standard Zeners directly improves SNR in sub-μV signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431ACDBVR | Adjustable shunt regulator (2.5 V min), 0.5% initial accuracy, 0.5 Ω typical output impedance - requires external resistors; not a fixed-voltage Zener | Used where programmability or tighter initial tolerance is required; unsuitable for ultra-low-current (<100 nA) biasing | Select if adjustable reference or <0.5% accuracy needed; avoid if minimal component count or sub-100 nA leakage is mandatory |
| BZX84-C2V7LT1G | Fixed 2.7 V Zener, SOT-23, 600 mW Pd, 100 Ω ZZT, −2.5 mV/°C TC - higher noise, larger package, higher thermal drift | Acceptable in cost-sensitive, non-precision applications; less suitable for low-noise or space-constrained designs | Select for general-purpose replacement where noise, size, or thermal stability are secondary; verify layout clearance for SOT-23 vs. URP |
Compared with TLVH431ACDBVR and BZX84-C2V7LT1G, the HZU27B01TRF-E offers superior noise performance, smaller footprint, and lower temperature drift - making it optimal for miniaturized, high-fidelity analog systems where fixed 2.7 V reference stability is critical.
Availability
HZU27B01TRF-E is available at Aetrix Electronics and suitable for precision voltage reference, low-power sensor biasing, and threshold detection applications requiring stable component supply, long-term parametric consistency, and RoHS-compliant packaging.
Supply support for HZU27B01TRF-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and enterprise applications.
The HZU-LL series was developed specifically for high-stability, low-noise voltage reference functions in space-constrained analog signal chains - targeting instrumentation, sensor interfaces, and portable medical electronics.
FAQ
What is the Zener voltage tolerance of the HZU27B01TRF-E?
The HZU27B01TRF-E has a Zener voltage specification of 2.7 V with a tolerance of ±0.2 V at IZ = 0.5 mA. This corresponds to a 7.4% full-scale tolerance band centered on 2.7 V. The value is measured under DC conditions per the official Renesas datasheet REJ03G1216-0500 Rev.5.00, and applies strictly to the HZU27B01TRF-E variant within the HZU-LL family.
Does the HZU27B01TRF-E support operation below 1 µA reverse current?
Yes, the HZU27B01TRF-E maintains semi-logarithmic linear VZ–IZ characteristics down to 1 nA, as confirmed in the Electrical Characteristics table and Fig.1 of the Renesas datasheet. Its hard-knee behavior ensures usable regulation even at nanoampere-level currents, enabling ultra-low-power biasing in sleep-mode circuits where the HZU27B01TRF-E serves as a stable reference node.
What is the maximum power dissipation rating for the HZU27B01TRF-E at 75°C ambient?
Per Fig.3 in the Renesas datasheet, the HZU27B01TRF-E's power dissipation derates linearly from 150 mW at 25°C to approximately 100 mW at 75°C ambient. This is based on the specified thermal resistance and absolute maximum ratings. Designers must limit average power in the HZU27B01TRF-E to ≤100 mW when operating continuously at 75°C to ensure junction temperature remains within the 150°C limit.
Is the HZU27B01TRF-E RoHS compliant and lead-free?
Yes, the HZU27B01TRF-E is RoHS compliant and lead-free. Renesas confirms compliance with EU RoHS Directive 2011/65/EU in product documentation and material declarations. The "-E" suffix in the part number denotes lead-free packaging, and the URP package uses lead-free solderable terminations - verified in Renesas' official environmental compliance statements for the HZU-LL series.
How does the noise performance of the HZU27B01TRF-E compare to standard Zener diodes?
The HZU27B01TRF-E delivers approximately 1/3 to 1/10 the noise voltage of conventional HZU-series Zeners, as explicitly stated in the Features section of the Renesas datasheet. This improvement results from epitaxial planar junction optimization and reduced generation-recombination noise - directly lowering RMS noise in reference paths where the HZU27B01TRF-E is deployed as a precision voltage source.
HZU27B01TRF-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZU27B01TRF-E FAQ
1.How can I place an order for HZU27B01TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU27B01TRF-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HZU27B01TRF-E reliable?
The price and inventory of HZU27B01TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU27B01TRF-E is usually 5 days.
3.What payment methods are accepted for HZU27B01TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU27B01TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU27B01TRF-E?
HZU27B01TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU27B01TRF-E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HZU27B01TRF-E?
For technical support, including HZU27B01TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU27B01TRF-E requirements.
6.How does Aetrix verify that HZU27B01TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU27B01TRF-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HZU27B01TRF-E meets industry standards.
7.What is the process for return or replacement of HZU27B01TRF-E?
All HZU27B01TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU27B01TRF-E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HZU27B01TRF-E part is unused and in its original packaging.
Return procedure for HZU27B01TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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